Bernard reber



(No Model.)

B. REBER. RBPEATING WATCH.

Patented Mar. 10, 1891.

UNITED STATES PATENT OEEIcE.

BERNARD REBER, OF LOOLE, SIVITZERLAND.

REPEATlNG-WATCH.

SPECIFICATION forming part of Letters Patent No. 447,973, dated March10, 1891. Application filed June 30, 1890. Serial No. 357,232- (Nomodel.) Patented in Switzerland November 23, 1888', No. I02.

T0 to whom it may concern:

Be it known that I, BERNARD REBER,\vatchmanufacturer, of Locle,Switzerland, have invented new and useful Improvements inRepeating-\Vatches, (for which I have obtained Letters Patent inSwitzerland November 23, 1888, No. 102,) of which the following is aspecification.

The objects of my invention are as follows: first, to obtain a verysmooth and easy movement of the lever which projects out of thewatch-case and acts upon the repeating mechanism; second, to arrangesuch mechanism within less space, so as to be able to use larger wheelsfor the watch-movement in a given cliameter 0t repeating-watches; third,to simplify the mechanism for the quarters. These three objects areeit'eeted by the devices of my improvement, which are shown in theaccompanying drawings, wherein- Figure l is a plan view complete of therepeating mechanism in large size. Fig. 2 is a plan View of themechanism for operating the hammers; and Fig. 3 is a sectional elevationof the same. Figs. 4: and 5 are detached views showing the operation ofthe toothed plates separately and together, as will be more fullyhereinafter set forth. Figs. 2 to 5, inclusive, are shown of exaggeratedsize.

In order that the drawings may easily be understood I have shown in thesame only those parts to which the specification refers, the wheelsdriving the repeating mechanism and its speed-regulator being made asusual in repeating-watches, and not being necessary toreadilyunderstandtheimprovements claimed.

In my improvements the lever A has its pivot a near the center of thewatch, and the end projects out of the case where it can be pushed bythe finger in the direction indicated by an arrow. The lever C ispivoted to the lever A at c, and has a forked end bearing upon the pin(Z of the rack-leverD, which rack-lever D is pivoted at (l and carriesan arm D, adapted to engage the hour-snail J. A spring B, fixed to theplate bears upon a pin 1) upon the lever A to move the latter and thepivoted lever 0 back to their normal position. (Shown in Fig. 1.)

The raolclever D acts, as usual, upon a pinion fixed to thespring-barrel axis E of the repeating mechanism, which carries the usualplates n and on being operated to move both hammers.

Both hammers M and N are superposed and pivoted upon a common axle orstud K, (see Figs. 2 and 3,) and the toothed plates 71 m are alsopivoted upon the same stud. The hammer N carries a pin n acted upon bythe toothed plate a, and the hammer M carries a pin m acted upon by thetoothed plate m, and the springs n m bear upon the pins 02? m to impartto the hammers the striking-blow in the return-movement.

The twelve teeth of the hourrack F act upon the toothed plate 01-, whichis in the same plane as these teeth, and the three teeth of thequarter-rack F are wider than the teeth of rack F, and are the fulldepth of the spring-barrel and are in the plane of the teeth of bothplates n and m, and these teeth act upon the toothed plates m and n. Thepoints of the teeth of plates on n are of different lengths, so that onetooth is liberated by the teeth of F slightly sooner than the other,thus causing the hammers to strike the well-known double strokeseparately but close together, sounding the quarter-hours in doubletune. The sounding of the quarters is regulated by means of the hook-armG, pivoted to the lever H, and having a projection g acted upon by thespring J, which tends to bring the end of said lever H into contact withone of the steps of the usual quartersnail I. A four-toothed rack f,affixed upon the wheel or rack F engages the hook-arm Ginto either itsfirst, second, third, or fourth tooth, according to the one of the fourpositions in which said hook-arm'G has been placed by the end of thelever H, bearing upon the snail I, nearly simultaneously with therack-wheel F, being turned to its operative starting-point by adepression of the lever A, and before it returns under the action of therepeating Fig. 4 represents the toothed plate mainspring.

The rack f, being thus hooked to the arm G, the latter will stop therotation of wheel F as soon as the projection of the lever H bearsagainst the screw-stop h.

The toothed plate on is maintained in the normal position shown in Figs.1 and 2that is to say, bearing against the pin m of hammer M, by meansof a spring m The toothed plate n is provided with a pin 0 bearingagainst the toothed plate on by the jointaction of the pin n and springit when n is at V mers are to be stopped to furnish a full stroke andclear sound. This is obtained by means of the conical-ended screw 1)acting upon the other end of the lever l, and the partial rotation ofthis screw shifts said leverinto the required position.

I claim as my invention 1. In repeating-watches, the combination, withthe lever A, havingapin b, and its pivot a near the center of the Watch,of an arm 0,

pivoted to the lever A at c and having a forked lower end, therack-lever D and its pin-d, against which the forked end of arm 0 bears,and a spring B, bearing against the pin 17, substantially as and for thepurpose specified.

2. In repeating-watches, the superposed hammers M and N, oscillatingupon the same pin or axis K, as set forth.

3. In repeating-watches, the combination, with the pin or axis K, of thesuperposed hammers M and N and the toothed plates n and m, all mountedand oscillating upon the same axis, as set forth.

4. In repeating-watches, the combination, with the toothed spring-barreland mechanism for imparting a partial rotation to the same in onedirection, of the toothed rack f, the hook-arm G, and its projection g,the spring J, the lever H, to which the arm G is pivoted, the snail I,and screw-stop 71, adapted to engage and limit the movements of thelever H, substantially as set forth.

' 5. The combination, in repeating-watches,

with the toothed spring-barrel and hammers,

of a pivot or axis K, the toothed plates n m, the pins 01?, m and 0 andsprings 01, 'm, and m and the regulating-lever P, substantially as setforth.

6. In repeating-watches, the combination, with the superposed toothedplatesnm and the hammers, of the spring-barrel having hour rack-teeth Fon the plane only of one toothed plate,and quarter-teeth F upon theplanes of both toothed plates -n and m, suhstantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

BERNARD REBER.

Witnesses:

ALFRED CHATIN, G. THIEBAUD.

